Our regular meeting will be held on Monday at 7 PM, at KVH.
In addition to our regular short business meeting, we will have a presentation by Mike Cullen, K1NPT, on Rhode Island’s rapidly growing Maker Movement (think home-brew electronics or mechanical systems) and the opportunities to make ham radio an integral part of that and STEAM education (Science, Technology, Engineering, Arts, and Mathematics).
Allison Phillips, a professional engineer, gave a walk through of the design, simulation, and production of simple circuits using free tools, during last nights NCRC meeting.
Allison Phillips Presenting to NCRC Members
Allison used LT-Spice, a free circuit simulation tool, available from Linear Technology at: http://www.linear.com/designtools/software/
For her PCB Prototypes, she used another free tool that is well integrated with the DigiKey parts catalog, called ExpressPCB. This CAD software is used to capture a schematic and layout a PCB which is then produced in a few days by ExpressPCB (a set of 3 identical small boards costs $51, for example)
Allison reviews Googled oscillator designs
Coincidentally, the February 2015 QST had an article on rapid prototyping: “Make Homebrewed Look Factory Built”. That article also described using ExpressPCB, as well as other companies to produce metal enclosures and attractive front-panels. (Reprinted with permission, February 2015 QST; copyright ARRL)
(Thanks to Dave Brown, KC1AAA, for the photographs)